of: property: Add device link support for iommus, mboxes and io-channels

Add support for creating device links out of more DT properties.
Signed-off-by: NSaravana Kannan <saravanak@google.com>
Reviewed-by: NRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20191105065000.50407-4-saravanak@google.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/of/property.c

@@ -1185,11 +1185,17 @@ struct supplier_bindings {
 
 DEFINE_SIMPLE_PROP(clocks, "clocks", "#clock-cells")
 DEFINE_SIMPLE_PROP(interconnects, "interconnects", "#interconnect-cells")
+DEFINE_SIMPLE_PROP(iommus, "iommus", "#iommu-cells")
+DEFINE_SIMPLE_PROP(mboxes, "mboxes", "#mbox-cells")
+DEFINE_SIMPLE_PROP(io_channels, "io-channel", "#io-channel-cells")
 DEFINE_SUFFIX_PROP(regulators, "-supply", NULL)
 
 static const struct supplier_bindings of_supplier_bindings[] = {
 	{ .parse_prop = parse_clocks, },
 	{ .parse_prop = parse_interconnects, },
+	{ .parse_prop = parse_iommus, },
+	{ .parse_prop = parse_mboxes, },
+	{ .parse_prop = parse_io_channels, },
 	{ .parse_prop = parse_regulators, },
 	{}
 };